:root {
  --bg: #0f1724;
  --card: #071027;
  --accent: #7c3aed;
  --muted: #9aa4b2;
  --glass: rgba(255, 255, 255, 0.03);
  font-family: Inter, system-ui, -apple-system, 'Segoe UI', Roboto, Arial;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  background: #002252;
  color: #e6eef6;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 28px;
}

.card {
  width: min(720px, 96%);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.01));
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 8px 30px rgba(2, 6, 23, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.03);
}

header {
  display: flex;
  gap: 14px;
  align-items: center;
}

.logo {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), #22c1c3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

h1 {
  margin: 0;
  font-size: 18px;
}

.lead {
  margin: 4px 0 12px;
  color: var(--muted);
  font-size: 14px;
}

.stopwatch {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 6px;
}

.display {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, 'Roboto Mono', monospace;
  font-size: 48px;
  text-align: center;
  padding: 18px 12px;
  border-radius: 10px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.015), rgba(255, 255, 255, 0.01));
  border: 1px solid rgba(255, 255, 255, 0.03);
}

.controls {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  padding: 10px 14px;
  border-radius: 10px;
  border: 0;
  background: linear-gradient(90deg, var(--accent), #22c1c3);
  color: white;
  font-weight: 600;
  cursor: pointer
}

.btn.secondary {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--muted)
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed
}

.small {
  font-size: 13px;
  color: var(--muted);
  margin: 0;
}

.laps {
  margin-top: 6px;
}

.laps-list {
  padding-left: 18px;
  margin: 6px 0 0;
  max-height: 160px;
  overflow: auto;
}

.laps-list li {
  padding: 6px 8px;
  border-radius: 8px;
  margin-bottom: 6px;
  background: rgba(255, 255, 255, 0.02);
  font-family: ui-monospace, monospace;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: center;
}

.laps-list li span:nth-child(1) {
  color: var(--muted);
  font-size: 13px
}

.laps-list li span:nth-child(2) {
  font-weight: 600
}

@media (max-width:480px) {
  .display {
    font-size: 36px;
    padding: 14px;
  }

  .controls {
    gap: 8px;
  }

  .btn {
    padding: 8px 10px;
  }
}